Edge ST 2022, Ambient light in the cupholder

hsprime85 · August 25, 2022

I have Edge ST 2022, it has been 2months.

I think I have to have ambient lighting in the cup holder, but its not working. is there any fuse to fix it ? or any suggestion? thanks.

Haz · August 25, 2022

Congratulations on your new Edge ST and welcome to the Forum.

While you specifically mention the cup holders, just in case you notice your Edge's entire ambient lighting is off, this recent discussion of 2022 ST ambient lighting may be useful if you have not already viewed it.

If you find that only your Edge's cup holder ambient lighting is inoperative (and not just off because the "on' setting is not retained from previous vehicle use), it would be best to make an appointment to have your dealer address the issue, since your Edge ST is brand-new and under warranty.

There is no singular fuse for the Ambient Lighting, since it is controlled by the Body Control Module (BCM), which contains a Field Effect Transistor (FET) that protects the ambient lighting circuit, per this description from the 2022 Edge Workshop Manual...

Field Effect Transistor (FET) Protection

The BCM utilizes an Field Effect Transistor (FET) protective circuit strategy for many of its outputs, for example, lamp output circuits. Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault event is detected.

A Field Effect Transistor (FET) is a type of transistor that the control module software uses to control and monitor current flow on module outputs. The Field Effect Transistor (FET) protection strategy prevents module damage in the event of excessive current flow.

Output loads (current level) are monitored for excessive current draw (typically short circuits). When a fault event is detected the Field Effect Transistor (FET) turns off and a short circuit DTC sets. The module resets the Field Effect Transistor (FET) protection and allows the circuit to function when the fault is corrected or the ignition state is cycled off and then back on.

When the excessive circuit load occurs often enough, the module shuts down the output until a repair procedure is carried out. Each Field Effect Transistor (FET) protected circuit has three predefined levels of short circuit tolerance based on a module lifetime level of fault events based upon the durability of the Field Effect Transistor (FET). If the total tolerance level is determined to be 600 fault events, the three predefined levels would be 200, 400 and 600 fault events.

When each level is reached, the DTC associated with the short circuit sets along with DTC U1000:00. These Diagnostic Trouble Codes (DTCs) can be cleared using the module on-demand self-test, then the Clear DTC operation on the scan tool (if the on-demand test shows the fault corrected). The module never resets the fault event counter to zero and continues to advance the fault event counter as short circuit fault events occur.

If the number of short circuit fault events reach the third level, then Diagnostic Trouble Codes (DTCs) U1000:00 and U3000:49 set along with the associated short circuit DTC . DTC U3000:49 cannot be cleared and the module must be replaced after the repair.

When you take your Edge in, a dealership Service technician may use the following Workshop Manual diagnostic test to determine the root cause of the problem...

(PARTIAL) PINPOINT TEST I: ONE OR MORE OF THE AMBIENT LIGHTING LIGHT EMITTING DIODES (LEDS) ARE INOPERATIVE OR DO NOT CHANGE COLOR/INTENSITY

Refer to Wiring Diagrams for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Interior Lighting - System Operation and Component Description (417-02 Interior Lighting, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
BCM B1465:00	Ambient Lighting Bus 1: No Sub Type Information	Sets when the BCM detects a fault in the LIN circuit to the door ambient lighting Light Emitting Diodes (LEDs).
BCM B1467:00	Ambient Lighting Bus 3: No Sub Type Information	Sets when the BCM detects a fault in the LIN circuit to the footwell and center console ambient lighting Light Emitting Diodes (LEDs).